Public transportation aficionados have a new pilgrimage destination: A turnstile at the bottom of the escalators at the Columbus Circle stop of the New York subway. That's the most-used turnstile of the most-used transportation system in the country.

New York City's transportation commissioner wants you to come clog up her roads and subways. "If you want to save the planet, move to New York," Janette Sadik-Khan said at a Clinton Global Initiative panel discussion on Tuesday. Thanks to dense, car-light living, she said, New Yorkers have a third of the carbon footprint of the average American.

Today is Car Free Day in the U.S., a holiday that will probably be celebrated by fewer people than Talk Like a Pirate Day. But we might still end up more observant than China, which had No Car Day yesterday -- and celebrated with a giant traffic jam.

Let nobody say Michele Bachmann isn't consistent, at least in this one particular sense. The woman just doesn't like regulation. Even the kind that's meant to keep you from chowing down on E. coli casserole.

Berkeley, Calif. news site Berkeleyside polled readers about what kind of car best embodies that famously granola town. The Volvo station wagon won out, but this shot by reader Ed probably better encompasses Berkeley's green …

If you're going to want pumpkins for this season's jack-o-lanterns, pies, horseman head substitutes, or transportation to the ball, better start stocking up now. This year's weird weather has meant a smaller pumpkin crop, and existing pumpkins are selling for much more than usual. Thanks, climate change, you buzzkill.